Abstract: A device for preventing theft of any appliance having a permanently attached power or data cord, such as portable power drills, power saws, personal computers, monitors, printers and the like. The device comprises a flat clamping body member made of two mating halves, a threaded bolt element which protrudes through both body member halves and a nut member which fits on the bolt to screw down tight on the clamping body. The clamping body incorporates running alignment grooves for cupping the power or data cords and holding them tightly. Holes are provided in the clamp body and nut member allowing a wire cable to be passed through, securing the device and appliance cord to the wire cable.

Abstract: A device for securing equipments such as personal computers, monitors, printers and the like by using a cable which is secured to a relatively immovable fixture. The device comprises a wire cable with a plastic sheath and having a bulbous protrusion on one end, a plurality of fastener blocks, a metal ring and a cam lock assembly. The cable locking device is secured to various equipments by fastener blocks with the cable passing through the blocks, the bulbous protrusion on the cable end preventing the cable from being pulled through the blocks. The free end of the cable is looped around a suitable pillar or immovable object, passing through a ring and thence through a cam lock assembly. By turning a key in the cam lock, the lock assembly is clamped to the cable, preventing the cable loop from being removed. Access to the screws holding the blocks to the equipment is prevented by the cable passing through the blocks above the screws.

Abstract: A clamp device for securing the housing of PC's and similar equipment to a desk or table so that it can not be moved or stolen. The device is shaped to fit on the PC housing. Clamp pieces at the rear are made to grip the PC at its back by insertion of a wrench or screwdriver in sockets which drive threaded rods. Rotation of the rods causes the rear clamps to move forward or rearward. A key locking means at the front of the device, is used to block access to the clamp adjustment sockets, preventing the clamp from being removed from the PC. In addition, provision is made for insertion of blocking bars in the device frame, so that access to the PC disk drives can be denied.

Abstract: A locking device for preventing access to a bolt or stud-nut which secures an equipment to a base. The device comprises three parts: a rectangular tube body, a slide member and a lock body. In use, the bolt is put through a hole in the tube body and the equipment, and tightened down. The slide member is then inserted in one end of the tube and slid over the head of the bolt or stud-nut and the lock body is inserted in the tube and locked by a key. This prevents the slide from being removed and prevents access to the bolt head or stud nut. The device is flat and compact, and may be used for a variety of applications where equipments are secured by bolts or stud-nuts, particularly in tight quarters.

Abstract: A locking device for preventing access to a bolt or stud-nut which secures an equipment to a base. The device comprises three parts: a block, a cover member and a lock body. In use, the bolt is put through a hole in the block and the equipment and is tightened down. The cover member is then fitted over the head of the bolt or stud-nut and the lock body is inserted in the block and locked by a key. This causes the lock to bear down on the cover member, preventing its removal. The device is compact and able to be used for a variety of applications where equipments are secured by bolts or stud-nuts.

Abstract: A safety device for locking a rifle, pistol or revolver so that it can not be accidentally discharged. The device operates by occupying the barrel of the gun and projecting into the breech. It is locked in place by a digital padlock which is used because it is difficult for children and unauthorized persons to open while being easy for an authorized person to open in the dark. Use of the device requires removal or displacement of parts of the weapon, increasing the safety provisions and guarding against accidental firing.

Abstract: A locking device for tank filler tubes is described, comprising a sleeve member for insertion in the filler tube to provide smooth walls, and an annular shaped locking collar that slides inside the sleeve and fastens through the sleeve to the inside wall of the filler tube. The locking collar does not have to be removed in order to fill the tank. Two disks, having off-center openings large enough for a filler hose nozzle, are arranged one above the other in the top of the locking collar so that the top disk can be rotated to allow the off-center openings to be aligned for a filler nozzle. A cylinder lock prevents rotation of the top disk when in the locked position. An alternative embodiment of the invention does not fit inside the tank filler tube, but rather is welded or joined to it. This alternative uses a padlock which prevents a cap from being rotated to a position which aligns openings in the device, allowing insertion of a filler hose nozzle.

Abstract: A device for discouraging unauthorized use of a computer disk drive, cassette tape deck, CD player or similar equipment. The device includes a block, a flat, projecting member which is sized to fit inside the slot opening of the disk drive or tape deck, and a "showcase" type locking mechanism. This type of mechanism employs a relatively thin strip of metal, having a serrated edge and a cylinder lock which ratchets along the strip, making for a compact lock. In this application, the serrated metal strip is bent 90 degrees at one end, forming a hook that holds on to the inside wall of the disk drive or cassette chamber. When the device projecting member and locking strip are inserted inside the slot opening of the drive, filling it, the block is pushed and held against the face of the drive, blocking access to it.

Abstract: A device for locking a floppy disk drive so that the drive can not be used to read the files stored on the diskettes. The preferred embodiment of the device is made of two assemblies, one of which includes a blank diskette which is inserted in the open empty disk drive. The second assembly, acting as a clamp, is placed over the protruding face of the first assembly in a manner so that the disk drive lever is enclosed by a cutout or notch in the clamp, and a lock screw in the clamp engages the first assembly. Alternately, no blank diskette is utilized with the first assembly. Instead, the first assembly includes a hard plastic tongue which is inserted in the open disk drive. Rotating the lock screw by a key placed in the clamp barrel lock, pulls the clamp until it is tightly seated against the disk drive face, preventing the disk drive from being opened and a diskette inserted.

Abstract: A device for locking a spare tire wheel which is mounted vertically on the back of a vehicle. The spare is mounted on studs that project from the back of the vehicle and is fastened in place with stud nuts. The device comprises three major metal parts: One part is a rectangular section tube that fits over one of the studs, with the stud protruding up through it. Another part is a locking assembly shaped to hold the stud nut in place. This assembly is inserted in the tube until it grasps the stud nut. The third part is a cylindrical lock plug which is inserted through a hole in the top of the tube and also through a hole in the locking assembly. Turning a key in the lock plug releases a lock pin that prevents removal of the lock plug. The stud nut can not now be accessed for removal, and the spare tire wheel is prevented from being removed by unauthorized persons.

Abstract: A security device for preventing the unauthorized use of a cassette tape deck installed in automobiles, or for locking CD players or computer disk drives. The invention is simple in conception and is made of only two asesmblies. One assembly is a transverse block made of rigid plastic, having a readward member projecting from its back surface and incorporating a cylindrical lock. The other assembly is a "T" shaped tongue piece made of stainless steel. The tongue piece is inserted in a horizontal slot cut in the transverse block, and the top of the "T" plus the rearward projecting member is then inserted in the cassette chamber opening. When pulled through by hand, a projecting ridge on the tongue piece hooks on to and bears against the inside surface edge of the cassette chamber opening. Rotating the cylindrical lock with a key causes a key element to engage one of a number of slots that are cut in the tongue piece.

Abstract: A device for securing the tailgate of a pickup truck, so that it can not be removed by unauthorized persons. The device is made of three steel assemblies, one of which is fitted over a tailgate extension, using the extension as an anchor for holding the device in place. A second assembly, acting as a clamp, is attached to the first by a fixed bolt and a nut. The clamp, presses on the side wall of the pickup truck, pulling the tailgate to it. Attached to the nut is a tube that holds a lock plug. When a lock plug is inserted in the tube, the nut can not be rotated and loosened. The lock plug is a cylinder lock, locked by a key and protected against weather by a plastic cap.

Abstract: A device for locking the spare tire wheel of a pickup truck in place so that it can not be lowered from the truck body and removed by unauthorized persons. The device is made of two metal steel assemblies, one of which is a rectangular tube and the other a cylindrical plug. In this application, the spare tire wheel is stowed underneath the rear of the truck body and held up by a hoist chain that is operated by a hoist mechanism fastened to the truck body. The rectangular tube is placed over the dangling hoist chain and pushed up to the hub. The cylindrical lock plug is inserted and locked, preventing movement of the hoist chain up and down and thereby preventing lowering of the spare tire wheel. In design, the locking device is massive, weatherproofed and not susceptible to breaking or damage.

Abstract: A deterrent device for inhibiting unauthorized use and sale of a video cassette recorder having a cassette chamber provided with a chamber opening and a hinged door normally closing said chamber opening in which the device includes a front panel to cover the opening, inwardly projecting members carried on the panel and extending through the chamber opening into the interior of the cassette chamber for moving the door into a position for engagement by said inwardly projecting arms to restrict and prohibit outward movement of the device, and an unlock element carried by the front panel and positioned within the chamber for movement against the door to lift the door from its engagement with the inwardly projecting arms for permitting release and removal of the device from said chamber and opening.

Abstract: A device for inhibiting use of a cassette deck having a cassette chamber accessible through a chamber opening in which the device includes an elongated flat body member having a length, width and thickness adapted to be received within the chamber through the opening, a transverse member at one end of the body member having a dimension greater than the corresponding dimension of the chamber opening to limit movement of the body member into the chamber, a lock element mounted and positioned within an opening in the body member and movable to one position to permit insertion of the body member into the cassette chamber and movable to another position to restrict outward movement of the body member; the lock element being adjustably positioned along a threaded member in the body member opening to a selected position therealong.